![](https://www.nasa.gov/sites/default/files/thumbnails/image/s116e05968.jpg)
NASA astronaut Robert Curbeam works on the International Space Station's S1 truss during the space shuttle Discovery's STS-116 mission in Dec. 2006. via NASA http://ift.tt/2BHlv4a
The blue tentacle-like arms containing gecko-like adhesive pads, attached to an Astrobee robotic free-flyer, reach out and grapple a "...
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